In Catalonia there are a lot of common names like Maria, Marc, David...
My family name is not very common.It is Gost, there are a few people with this surname.
As in English, there are a lot of surnames about professions: Fuster, Ferrer.
I think there are some names from other countries in my country like Alex, Kevin... Now there are common.
In Catalonia is used the form Sr or Sra (like Mr or Mrs in England) but only in formal. Do you think the same?